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kernel
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Divide optimisation (ceiling) + some small cleanups 

git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@717 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Bart Oldeman 2003-10-16 14:25:15 +00:00
parent 61d87d82bb
commit dd9df1f3a6
1 changed files with 7 additions and 7 deletions
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14
kernel/fcbfns.c
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@ -251,11 +251,11 @@ UBYTE FcbReadWrite(xfcb FAR * lpXfcb, UCOUNT recno, int mode)
if ((ULONG)recno * lpFcb->fcb_recsiz >= 0x10000ul || if ((ULONG)recno * lpFcb->fcb_recsiz >= 0x10000ul ||
FP_OFF(FcbIoPtr) < FP_OFF(dta)) FP_OFF(FcbIoPtr) < FP_OFF(dta))
return FCB_ERR_SEGMENT_WRAP; return FCB_ERR_SEGMENT_WRAP;
/* Convert to fcb if necessary */ /* Convert to fcb if necessary */
lpFcb = ExtFcbToFcb(lpXfcb); lpFcb = ExtFcbToFcb(lpXfcb);
/* Now update the fcb and compute where we need to position */ /* Now update the fcb and compute where we need to position */
/* to. */ /* to. */
lPosit = FcbRec(lpFcb) * lpFcb->fcb_recsiz; lPosit = FcbRec(lpFcb) * lpFcb->fcb_recsiz;
@ -266,7 +266,7 @@ UBYTE FcbReadWrite(xfcb FAR * lpXfcb, UCOUNT recno, int mode)
nTransfer = DosRWSft(lpFcb->fcb_sftno, lpFcb->fcb_recsiz, FcbIoPtr, mode); nTransfer = DosRWSft(lpFcb->fcb_sftno, lpFcb->fcb_recsiz, FcbIoPtr, mode);
if (nTransfer < 0) if (nTransfer < 0)
CritErrCode = -(int)nTransfer; CritErrCode = -(int)nTransfer;
/* Now find out how we will return and do it. */ /* Now find out how we will return and do it. */
if (nTransfer == lpFcb->fcb_recsiz) if (nTransfer == lpFcb->fcb_recsiz)
{ {
@ -286,12 +286,14 @@ UBYTE FcbReadWrite(xfcb FAR * lpXfcb, UCOUNT recno, int mode)
UBYTE FcbGetFileSize(xfcb FAR * lpXfcb) UBYTE FcbGetFileSize(xfcb FAR * lpXfcb)
{ {
int FcbDrive, sft_idx; int FcbDrive, sft_idx;
unsigned recsiz;
/* Build a traditional DOS file name */ /* Build a traditional DOS file name */
fcb FAR *lpFcb = CommonFcbInit(lpXfcb, SecPathName, &FcbDrive); fcb FAR *lpFcb = CommonFcbInit(lpXfcb, SecPathName, &FcbDrive);
recsiz = lpFcb->fcb_recsiz;
/* check for a device */ /* check for a device */
if (!lpFcb || IsDevice(SecPathName) || (lpFcb->fcb_recsiz == 0)) if (!lpFcb || IsDevice(SecPathName) || (recsiz == 0))
return FCB_ERROR; return FCB_ERROR;
sft_idx = (short)DosOpenSft(SecPathName, O_LEGACY | O_RDONLY | O_OPEN, 0); sft_idx = (short)DosOpenSft(SecPathName, O_LEGACY | O_RDONLY | O_OPEN, 0);
@ -303,9 +305,7 @@ UBYTE FcbGetFileSize(xfcb FAR * lpXfcb)
fsize = SftGetFsize(sft_idx); fsize = SftGetFsize(sft_idx);
/* compute the size and update the fcb */ /* compute the size and update the fcb */
lpFcb->fcb_rndm = fsize / lpFcb->fcb_recsiz; lpFcb->fcb_rndm = (fsize + (recsiz - 1)) / recsiz;
if ((fsize % lpFcb->fcb_recsiz) != 0)
++lpFcb->fcb_rndm;
/* close the file and leave */ /* close the file and leave */
if ((CritErrCode = -DosCloseSft(sft_idx, FALSE)) == SUCCESS) if ((CritErrCode = -DosCloseSft(sft_idx, FALSE)) == SUCCESS)